Can't start rails server after aws-sdk-3 installed

I know that there is a lot of such kind of questions, but still, I believe my case is slightly different. I recently decided to build in an AWS-S3 gem to my rails version 3 project. After the successfully aws-sdk gem have been installed, I've got an error message on rails server

/root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/aws-sdk-core-3.78.0/lib/seahorse/client/net_http/patches.rb:26:in `alias_method': undefined method `new_transport_request' for class `Net::HTTP' (NameError)
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/aws-sdk-core-3.78.0/lib/seahorse/client/net_http/patches.rb:26:in `apply!'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/aws-sdk-core-3.78.0/lib/seahorse/client/net_http/connection_pool.rb:10:in `<top (required)>'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/aws-sdk-core-3.78.0/lib/seahorse.rb:34:in `require_relative'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/aws-sdk-core-3.78.0/lib/seahorse.rb:34:in `<top (required)>'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:242:in `require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:242:in `block in require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:225:in `block in load_dependency'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:597:in `new_constants_in'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:225:in `load_dependency'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:242:in `require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/aws-sdk-core-3.78.0/lib/aws-sdk-core.rb:2:in `<top (required)>'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:242:in `require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:242:in `block in require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:225:in `block in load_dependency'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:597:in `new_constants_in'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:225:in `load_dependency'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:242:in `require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/aws-sdk-resources-3.59.0/lib/aws-sdk-resources.rb:1:in `<top (required)>'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:242:in `require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:242:in `block in require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:225:in `block in load_dependency'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:597:in `new_constants_in'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:225:in `load_dependency'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/activesupport-3.0.19/lib/active_support/dependencies.rb:242:in `require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/aws-sdk-3.0.1/lib/aws-sdk.rb:1:in `<top (required)>'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/bundler-1.0.18/lib/bundler/runtime.rb:68:in `require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/bundler-1.0.18/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/bundler-1.0.18/lib/bundler/runtime.rb:66:in `each'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/bundler-1.0.18/lib/bundler/runtime.rb:66:in `block in require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/bundler-1.0.18/lib/bundler/runtime.rb:55:in `each'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/bundler-1.0.18/lib/bundler/runtime.rb:55:in `require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/bundler-1.0.18/lib/bundler.rb:120:in `require'
from /jasa/api/trunk/config/application.rb:7:in `<top (required)>'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/railties-3.0.19/lib/rails/commands.rb:28:in `require'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/railties-3.0.19/lib/rails/commands.rb:28:in `block in <top (required)>'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/railties-3.0.19/lib/rails/commands.rb:27:in `tap'
from /root/.rbenv/versions/1.9.2-p320/lib/ruby/gems/1.9.1/gems/railties-3.0.19/lib/rails/commands.rb:27:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'

I've tried both

gem 'aws-sdk', '~> 3'

and

gem 'aws-sdk-s3', '~> 1'

Thanks a lot. Any help will be appreciated.